CN109900557B - High-pressure-resistant testing device and method for ceramic pipe - Google Patents
High-pressure-resistant testing device and method for ceramic pipe Download PDFInfo
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- CN109900557B CN109900557B CN201910299247.0A CN201910299247A CN109900557B CN 109900557 B CN109900557 B CN 109900557B CN 201910299247 A CN201910299247 A CN 201910299247A CN 109900557 B CN109900557 B CN 109900557B
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- 239000000919 ceramic Substances 0.000 title claims abstract description 60
- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000002347 injection Methods 0.000 claims abstract description 28
- 239000007924 injection Substances 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims description 80
- 239000000243 solution Substances 0.000 claims description 5
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 16
- 230000007547 defect Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000011224 oxide ceramic Substances 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a high-pressure resistance testing device and a high-pressure resistance testing method for a ceramic pipe, wherein the testing device comprises a gas circuit pipeline, a waterway pipeline and a pressure gauge; the gas circuit pipeline sends out two branches rightwards, one branch is connected to the gas inlet of the high-pressure gas-driven liquid pump through a first pressure regulator, and the other branch is connected to the gas inlet of the liquid injection pump through a second pressure regulator; the waterway pipeline sequentially passes through the liquid injection pump and the high-pressure air-drive liquid pump after being sent out from the left end of the water tank and is connected with the pipe clamping mechanism. The using method of the testing device comprises the steps of assembling a pipe clamping unit, introducing compressed air, starting a liquid injection pump, a high-pressure air-driven liquid pump, testing pressure and the like. The invention carries out pressure test on the ceramic pipe by high-pressure water, and has the advantages of wide pressure resistance test range which can reach 50MPa at most; in addition, the invention can realize simultaneous testing of a plurality of pipes and has the advantages of high testing efficiency and time saving.
Description
Technical Field
The invention relates to a testing device and a testing method, in particular to a ceramic pipe high-pressure-resistant testing device and a ceramic pipe high-pressure-resistant testing method.
Background
Ceramic tubes, such as high performance ceramic tubes of alumina, zirconia, silicon carbide, silicon nitride and the like, are increasingly used in industry. For example, the aluminum oxide ceramic tube is widely applied to industrial lighting tubes, the zirconium oxide ceramic tube can be used for an automobile oxygen sensor, the silicon carbide ceramic tube is commonly applied to the fields of chemical industry and high-temperature heat exchange, the silicon nitride ceramic tube is commonly used for temperature measurement of metal aluminum liquid and the like, and the unique performance of the ceramic tube plays an increasingly larger role.
Ceramic tubes, particularly finer and longer tubes, are mostly manufactured by extrusion molding processes. In the extrusion molding process, a large amount of binder, lubricant, etc. are required to be added, and if these additives cannot be effectively removed during the high-temperature sintering process, defects are generated inside the ceramic tube. Such defects are often in the order of micrometers and also tend to produce longer voids during extrusion, which can lead to insufficient pressure resistance of the ceramic tubing in practical applications.
The pressure resistance test of the ceramic pipe generally adopts the modes of industrial CT, ultrasonic wave and the like, but the modes have high operation cost, and can not judge some microscopic defects in time, so that the test period is longer. At present, air pressure test is the most effective way to test the pressure of ceramic pipes, but the pressure resistant range of the existing air pressure test is not high, usually about 0.1 MPa, and the pipe test requirement of the ceramic pipes in the high pressure resistant environment cannot be met.
Disclosure of Invention
In order to solve the defects of the technology, the invention provides a device and a method for testing the high pressure resistance of a ceramic pipe.
In order to solve the technical problems, the invention adopts the following technical scheme: a ceramic pipe high pressure resistance testing device comprises a gas path pipeline, a water path pipeline, a liquid injection pump, a high pressure gas-liquid drive pump and a pressure gauge; the gas circuit pipeline sends out two branches rightwards, one branch is connected to the gas inlet of the high-pressure gas-driven liquid pump through a first pressure regulator, and the other branch is connected to the gas inlet of the liquid injection pump through a second pressure regulator; the high-pressure air-driven liquid pump and the liquid injection pump are driven by compressed air so as to burst high-pressure liquid;
the waterway pipeline sequentially passes through the liquid injection pump and the high-pressure gas-liquid drive pump after being sent out from the left end of the water tank and is connected with the pipe clamping mechanism; the water solution is conveyed to a pipe clamping mechanism after secondary pressurization so as to carry out pressure test on the pipe; a check valve is arranged on a waterway pipeline between the pipe clamping mechanism and the high-pressure gas-liquid drive pump;
the waterway pipeline between the check valve and the pipe clamping mechanism downwards emits a branch which extends into the water tank and forms a waterway loop together with the waterway pipeline emitted from the left end of the water tank; a pressure relief valve is arranged on the branch pipeline between the pipe clamping mechanism and the water tank; the manometer is arranged at the intersection of the waterway pipeline and the branch pipeline.
Further, the pressure release valve, the check valve, the high-pressure air-driven liquid pump, the liquid injection pump, the first pressure regulator and the second pressure regulator are all connected with the PC controller through wires.
Further, an electric proportional regulating valve is arranged on a gas path pipeline at the left end of the high-pressure gas-driven liquid pump and used for accurately controlling the air inflow of compressed air.
Further, an air filter is arranged on the air path pipeline at the left end of the electric proportional control valve and is used for filtering dust and solid impurities in the compressed air.
Further, the electric proportional control valve and the air filter are connected with the PC controller through wires.
Further, the pipe clamping mechanism comprises a plurality of pipe clamping units which are respectively communicated with a plurality of branches sent to the right side of the waterway pipeline.
Further, the pipe clamping unit comprises a base, a left sealing head and a right sealing head; the upper end of the base is provided with a sliding rail;
the lower ends of the left sealing head and the right sealing head are respectively fixedly provided with a left sliding block and a right sliding block which are inverted U-shaped; the left sliding block and the right sliding block respectively drive the left sealing head and the right sealing head to slide left and right along the sliding rail; ceramic pipes are clamped between the left sealing head and the right sealing head;
the left sealing head is communicated with the branch on the right side of the waterway pipeline through the through hole, the right sealing head is communicated with the exhaust pipe through the through hole, and the exhaust pipe is provided with an exhaust valve.
Further, a lock nut is arranged on the right sliding block and is fixedly connected with the sliding rail after penetrating through the front side surface of the right sliding block, so that the right sealing head is locked and fixed.
Further, the inner sides of the left sealing head and the right sealing head are respectively provided with a short cylinder matched with the inner diameter of the ceramic pipe, a radial sealing ring is sleeved on the short cylinder, and an end face sealing ring is sleeved at the joint of the short cylinder and the sealing head; the left sealing head and the right sealing head are connected with one end of the ceramic pipe in a sealing way through radial sealing rings and end face sealing rings.
The application method of the ceramic pipe high-pressure resistance testing device comprises the following specific processes:
a. unscrewing the lock nut, and adjusting the position of the right sealing head so as to adapt to ceramic pipes with different lengths and clamp the ceramic pipes between the left sealing head and the right sealing head;
b. c, assembling N pipe clamping units according to the requirement, wherein N is less than or equal to 20; simultaneously, all exhaust valves are ensured to be opened;
c. compressed air is introduced into the air path pipeline, so that the compressed air enters the liquid injection pump and the high-pressure air-driven liquid pump along the air path branch respectively; simultaneously starting a liquid injection pump and a high-pressure gas-driven liquid pump, so that water in a water tank is burst into a waterway pipeline through a first stage of the liquid injection pump, and is burst into a pipe clamping mechanism through a second stage of the high-pressure gas-driven liquid pump;
d. when the deflation of N exhaust pipes in the pipe clamping mechanism is finished and the drainage is started, closing the exhaust valve and continuously pressurizing the ceramic pipe;
e. if the limit pressure of the ceramic pipe is to be tested, continuously pressurizing until the ceramic pipe bursts, and recording the pressure when the pipe bursts as the limit pressure by a pressure gauge;
f. if the pressure resistance of the ceramic pipe under the specific pressure is to be measured, stopping pressurizing after pressurizing to the specific pressure, and maintaining the pressure for 2 minutes, and if the pipe is free from leakage and breakage, proving that the pressure resistance of the pipe is good; step g is executed next;
g. after the pressure-resistant test is finished, the pressure release valve is opened, so that water in the ceramic pipe flows back to the water tank along the waterway pipeline.
The invention carries out pressure test on the ceramic pipe by high-pressure water, and has the advantages of wide pressure resistance test range which can reach 50MPa at most; in addition, the invention can realize simultaneous testing of a plurality of pipes and has the advantages of high testing efficiency and time saving.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic structural view of a pipe clamping unit.
Fig. 3 is a longitudinal sectional view of the pipe clamping unit at the right sealing head.
Fig. 4 is a partially enlarged schematic structural view of the left seal head in fig. 2.
Fig. 5 is a partially enlarged schematic view of the right seal head in fig. 2.
In the figure: 1. a first voltage regulator; 2. a second voltage regulator; 3. an air filter; 4. a liquid injection pump; 5. an electric proportional control valve; 6. a high pressure gas-liquid pump; 7. a check valve; 8. a pressure gauge; 9. a PC controller; 10. a water tank; 11. a pressure release valve; 12. a pipe clamping mechanism; 13. a left sealing head; 14. a left slider; 15. a slide rail; 16. a base; 17. a right sealing head; 18. a right slider; 19. an exhaust valve; 20. ceramic pipe; 21. a lock nut; 22. an end face seal ring; 23. and (5) radial sealing rings.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description.
The high-pressure resistance testing device for the ceramic pipe shown in fig. 1 comprises a gas path pipeline, a water path pipeline, a liquid injection pump 4, a high-pressure gas-liquid drive pump 6 and a pressure gauge 8; the gas path pipeline sends out two branches rightwards, one branch is connected to the gas inlet of the high-pressure gas-liquid drive pump 6 through the first pressure regulator 1, and the other branch is connected to the gas inlet of the liquid injection pump 4 through the second pressure regulator 2; the high-pressure air-driven liquid pump 6 and the injection pump 4 are driven by compressed air to further burst high-pressure liquid.
The waterway pipeline sequentially passes through the liquid injection pump 4 and the high-pressure gas-liquid drive pump 6 after being sent out from the left end of the water tank 10 and is connected with the pipe clamping mechanism 12, namely, the water solution can be conveyed to the pipe clamping mechanism 12 after being subjected to secondary pressurization so as to carry out pressure test on the pipe; a check valve 7 is arranged on a waterway pipeline between the pipe clamping mechanism 12 and the high-pressure gas-liquid drive pump 6, so that the backflow of high-pressure water solution can be prevented;
the waterway pipeline between the check valve 7 and the pipe clamping mechanism 12 downwards emits a branch which extends into the water tank 10 and forms a waterway loop together with the waterway pipeline emitted from the left end of the water tank, and the waterway pipeline is used for conveying the water solution after the test is finished back into the water tank; a pressure relief valve 11 is arranged on a branch pipeline between the pipe clamping mechanism 12 and the water tank, and after the pressure relief valve 11 is opened, water in the pipe clamping mechanism 12 can flow back to the water tank under the drive of high pressure;
the pressure gauge 8 is arranged at the intersection of the waterway pipeline and the branch pipeline, and can observe the pressure born by the pipe at any time; the pressure release valve 11, the check valve 7, the high-pressure air-driven liquid pump 6, the liquid injection pump 4, the first pressure regulator 1 and the second pressure regulator 2 are all connected with the PC controller 9 through wires, and intelligent control can be performed through the PC controller 9, so that manual operation is avoided.
An electric proportional regulating valve 5 is arranged on a gas path pipeline at the left end of the high-pressure gas-liquid drive pump 6 and is used for accurately controlling the air inflow of compressed air.
An air filter 3 is arranged on the air path pipeline at the left end of the electric proportional control valve 5 and is used for filtering dust and solid impurities in the compressed air.
The electric proportional control valve 5 and the air filter 3 are connected with a PC controller 9 through wires.
The pipe clamping mechanism 12 comprises a plurality of pipe clamping units which are respectively communicated with a plurality of branches sent to the right side of the waterway pipeline.
As shown in fig. 2 to 5, the pipe clamping unit comprises a base 16, a left sealing head 13 and a right sealing head 17; the upper end of the base 16 is provided with a sliding rail 15; the lower ends of the left sealing head 13 and the right sealing head 17 are respectively fixedly provided with a left sliding block 14 and a right sliding block 18 which are inverted U-shaped; the left slide block 14 and the right slide block 18 respectively drive the left sealing head 13 and the right sealing head 17 to slide left and right along the slide rail 15; a ceramic pipe 20 is clamped between the left sealing head 13 and the right sealing head 17;
the middle of the inside of the left sealing head 13 and the right sealing head 17 is transversely provided with through holes, the left sealing head 13 is communicated with the branch on the right side of the waterway pipeline through the through holes, the right sealing head 17 is communicated with the exhaust pipe through the through holes, and the exhaust pipe is provided with an exhaust valve 19.
The right sliding block 18 is provided with a locking nut 21, and the locking nut 21 penetrates through the front side surface of the right sliding block 18 and is fixedly connected with the sliding rail 15, so that the right sealing head 17 is locked and fixed.
The inner sides of the left sealing head 13 and the right sealing head 17 are respectively provided with a short cylinder matched with the inner diameter of the ceramic pipe 20, a radial sealing ring 23 is sleeved on the short cylinder, and an end face sealing ring 22 is sleeved at the joint of the short cylinder and the sealing head; the left sealing head 13 and the right sealing head 17 are respectively connected with one end of the ceramic pipe 20 in a sealing way through a radial sealing ring 23 and an end face sealing ring 22.
The application method of the ceramic pipe high-pressure resistance testing device comprises the following specific processes:
a. unscrewing the lock nut 21, and adjusting the position of the right sealing head 17 to adapt to ceramic pipes with different lengths and clamping the ceramic pipes between the left sealing head 13 and the right sealing head 17;
b. c, assembling N pipe clamping units according to the requirement, wherein N is less than or equal to 20; simultaneously, all exhaust valves are ensured to be opened;
c. compressed air is introduced into the air path pipeline, so that the compressed air enters the liquid injection pump 4 and the high-pressure air-driven liquid pump 6 along the air path branch respectively; simultaneously starting the injection pump 4 and the high-pressure gas-driven liquid pump 6, so that water in the water tank 10 is first burst into a waterway pipeline through the injection pump 4, and then is second burst into the pipe clamping mechanism 12 through the high-pressure gas-driven liquid pump 6;
d. when the deflation of N exhaust pipes in the pipe clamping mechanism 12 is finished and the drainage is started, closing the exhaust valve 19, and continuously pressurizing the ceramic pipe;
e. if the limit pressure of the ceramic pipe is to be tested, continuously pressurizing until the ceramic pipe bursts, and recording the pressure when the pipe bursts as the limit pressure by a pressure gauge 8;
f. if the pressure resistance of the ceramic pipe under the specific pressure is to be measured, stopping pressurizing after pressurizing to the specific pressure, and maintaining the pressure for 2 minutes, and if the pipe is free from leakage and breakage, proving that the pressure resistance of the pipe is good; step g is executed next;
g. after the pressure resistance test is completed, the pressure release valve 11 is opened, so that water in the ceramic pipe flows back to the water tank 10 along the waterway pipeline.
According to the invention, the ceramic pipe is subjected to pressure test by high-pressure water, the pressure resistance of the testable ceramic pipe can reach more than 10MPa and can reach 50MPa at most, and the ceramic pipe has the advantages of reasonable system structure and stable pressure test; in addition, the invention can realize simultaneous testing of a plurality of pipes and has the advantages of high testing efficiency and time saving.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, but is also intended to be limited to the following claims.
Claims (3)
1. The utility model provides a high pressure resistant testing arrangement of ceramic tubular product which characterized in that: comprises a gas path pipeline, a water path pipeline, a liquid injection pump (4), a high-pressure gas-driven liquid pump (6) and a pressure gauge (8); the gas circuit pipeline sends out two branches rightwards, one branch is connected to the gas inlet of the high-pressure gas-liquid drive pump (6) through a first pressure regulator (1), and the other branch is connected to the gas inlet of the liquid injection pump (4) through a second pressure regulator (2); the high-pressure air-drive liquid pump (6) and the injection liquid pump (4) are driven by compressed air to further burst high-pressure liquid; the waterway pipeline sequentially passes through the liquid injection pump (4) and the high-pressure air-drive liquid pump (6) after being sent out from the left end of the water tank (10) and is connected with the pipe clamping mechanism (12); the water solution is conveyed to a pipe clamping mechanism (12) after being subjected to secondary pressurization so as to carry out pressure test on the pipe; a check valve (7) is arranged on a waterway pipeline between the pipe clamping mechanism (12) and the high-pressure air-driven liquid pump (6); the waterway pipeline between the check valve (7) and the pipe clamping mechanism (12) downwards emits a branch, and the branch extends into the water tank (10) and forms a waterway loop together with the waterway pipeline emitted from the left end of the water tank; a pressure release valve (11) is arranged on a branch pipeline between the pipe clamping mechanism (12) and the water tank; the pressure gauge (8) is arranged at the intersection of the waterway pipeline and the branch pipeline;
the pressure release valve (11), the check valve (7), the high-pressure air-driven liquid pump (6), the liquid injection pump (4), the first pressure regulator (1) and the second pressure regulator (2) are connected with the PC controller (9) through wires;
an electric proportional regulating valve (5) is arranged on a gas path pipeline at the left end of the high-pressure gas-driven liquid pump (6) and used for accurately controlling the air inflow of compressed air;
an air filter (3) is arranged on the air path pipeline at the left end of the electric proportional control valve (5) and is used for filtering dust and solid impurities in the compressed air;
the electric proportional control valve (5) and the air filter (3) are connected with the PC controller (9) through wires;
the pipe clamping mechanism (12) comprises a plurality of pipe clamping units which are respectively communicated with a plurality of branches sent to the right side of the waterway pipeline;
the pipe clamping unit comprises a base (16), a left sealing head (13) and a right sealing head (17); the upper end of the base (16) is provided with a sliding rail (15); the lower ends of the left sealing head (13) and the right sealing head (17) are respectively fixedly provided with a left sliding block (14) and a right sliding block (18) which are inverted U-shaped; the left sliding block (14) and the right sliding block (18) respectively drive the left sealing head (13) and the right sealing head (17) to slide left and right along the sliding rail (15); ceramic pipe (20) is clamped between the left sealing head (13) and the right sealing head (17);
the left sealing head (13) and the right sealing head (17) are transversely provided with through holes in the middle, the left sealing head (13) is communicated with a branch on the right side of the waterway pipeline through the through holes, the right sealing head (17) is communicated with an exhaust pipe through the through holes, and the exhaust pipe is provided with an exhaust valve (19);
the right sliding block (18) is provided with a locking nut (21), and the locking nut (21) penetrates through the front side surface of the right sliding block (18) and is fixedly connected with the sliding rail (15) so as to lock and fix the right sealing head (17).
2. The ceramic pipe high pressure resistance testing device according to claim 1, wherein: the inner sides of the left sealing head (13) and the right sealing head (17) are respectively provided with a short cylinder matched with the inner diameter of the ceramic pipe (20), a radial sealing ring (23) is sleeved on the short cylinder, and an end face sealing ring (22) is sleeved at the joint of the short cylinder and the sealing head; the left sealing head (13) and the right sealing head (17) are connected with one end of the ceramic pipe (20) in a sealing way through a radial sealing ring (23) and an end face sealing ring (22).
3. A method for using the ceramic pipe high pressure resistance testing device according to claim 2, wherein: the method comprises the following specific processes:
a. unscrewing the lock nut (21), and adjusting the position of the right sealing head (17) so as to adapt to ceramic pipes with different lengths and clamp the ceramic pipes between the left sealing head (13) and the right sealing head (17);
b. c, assembling N pipe clamping units according to the requirement, wherein N is less than or equal to 20; simultaneously, all exhaust valves are ensured to be opened;
c. compressed air is introduced into the air path pipeline, so that the compressed air enters the liquid injection pump (4) and the high-pressure air-driven liquid pump (6) along the air path branch respectively; simultaneously starting the injection pump (4) and the high-pressure gas-driven liquid pump (6), enabling water in the water tank (10) to be first-level-burst into the waterway pipeline through the injection pump (4), and then second-level-burst into the pipe clamping mechanism (12) through the high-pressure gas-driven liquid pump (6);
d. when the discharge of the N exhaust pipes in the pipe clamping mechanism (12) is finished, closing the exhaust valve (19) and continuously pressurizing the ceramic pipe;
e. if the limit pressure of the ceramic pipe is to be tested, continuously pressurizing until the ceramic pipe bursts, and recording the pressure when the pipe bursts as the limit pressure by a pressure gauge (8);
f. if the pressure resistance of the ceramic pipe under the specific pressure is to be measured, stopping pressurizing after pressurizing to the specific pressure, and maintaining the pressure for 2 minutes, and if the pipe is free from leakage and breakage, proving that the pressure resistance of the pipe is good; step g is executed next;
g. after the pressure-proof test is finished, the pressure release valve (11) is opened, so that water in the ceramic pipe flows back to the water tank (10) along the waterway pipeline.
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| CN201910299247.0A CN109900557B (en) | 2019-04-15 | 2019-04-15 | High-pressure-resistant testing device and method for ceramic pipe |
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| CN103115822A (en) * | 2012-12-12 | 2013-05-22 | 上海电气钠硫储能技术有限公司 | Internal-pressure-resistant detection method for ceramic tube |
| CN103123311A (en) * | 2012-12-12 | 2013-05-29 | 上海电气钠硫储能技术有限公司 | Device used for detecting pressure resistance of ceramic tube |
| CN103234833A (en) * | 2013-05-06 | 2013-08-07 | 西安海联石化科技有限公司 | Equipment and device for hydraulic pressure test of rear metal pipe |
| CN105319132A (en) * | 2014-07-19 | 2016-02-10 | 无锡华瑞铝业有限公司 | Aluminium-flat-tube explosion hydraulic-pressure test apparatus |
| CN205483828U (en) * | 2016-02-04 | 2016-08-17 | 新疆城轩高新材料有限公司 | Liquid accuse formula tubular product pressure test platform |
| CN106969890A (en) * | 2016-07-15 | 2017-07-21 | 上海石油天然气有限公司 | High pressure watertight system safety testing device |
| CN107063879A (en) * | 2017-04-15 | 2017-08-18 | 青岛理工大学 | Pressure-resistant blasting tester for pipes |
| CN209820957U (en) * | 2019-04-15 | 2019-12-20 | 南通三责精密陶瓷有限公司 | High-pressure-resistant testing device for ceramic pipe |
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